Mount Osborn is the highest point in the Kigluaik Mountains, and also on the Seward Peninsula. It is approximately 4714 feet high and is located on the north end of the range. Despite being almost one thousand feet taller, Osborn's fame is matched by Mount Bendeleben (located east of the Kigluaiks) because Bendeleben is much taller than any of the peaks in its territory.